I try to use js to read a video in my page but as well to zoom on a picture in the same page.

If i just want to read a video, it works just by using :

Code JavaScript:
    <link href="/js/shadowbox/shadowbox.css" rel="stylesheet" type="text/css" /> 
    <script src="/js/shadowbox/shadowbox.js" type="text/javascript"></script> 
<a href="/Media/Vid_lb.flv" rel="shadowbox[employees];height=360;width=640;"  title="LB"> 
 <img src="/styles/images/lb.jpg" alt="" width="213" height="120" /><br /> 
    <script type="text/javascript"> 
    /* <![CDATA[ */ 
        skipSetup: false, 
        players: ["flv"], 
        overlayColor: "#ffffff", 
        overlayOpacity: 0.7, 
        flashVars: { 
            autostart:          "true", 
            screenalpha:        "0", 
            plugins:                "viral-2,gapro-1", 
            "gapro.accountid":      "UA-5555555-0", 
            "gapro.trackstarts":    "true", 
            "gapro.tracktime":      "true", 
            "viral.callout":            "always", 
            "viral.oncomplete":         "true", 
            "viral.functions":          "link", 
            "viral.link":               "...Employees.aspx", 
            "viral.onpause":            "false", 
            "viral.matchplayercolors":  "false", 
            "viral.allowmenu":          "true", 
            "viral.allowdock":          "false", 
            "viral.multidock":          "false", 
            "viral.fgcolor":            "339999", 
            "viral.bgcolor":            "000000" 
    /* ]]> */ 

This way it shows the video properly by clicking on it, the video come in the middle of the screen...

But as soon as I'm adding :

Code JavaScript:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>

To use zoom on pictures on the same page .... now when I'm clicking on the video to see it, i've an windows popup which ask me to open it or download it. Any idea?